Home / 487,014.02-672,077.40-272,154.03

Finding the Fourth Proportional to 487,014.02, 672,077.40 and 272,154.03

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Solution

The fourth proportional to 487,014.02, 672,077.40 and 272,154.03 is: 375,571.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,014.02 : 672,077.40 = 272,154.03 : x
  2. Step 2: Convert to fraction form
    487,014.02/672,077.40 = 272,154.03/x
  3. Step 3: Cross multiply
    487,014.02x = 672,077.40 × 272,154.03
  4. Step 4: Simplify right side
    487,014.02x = 182,908,570,871.92
  5. Step 5: Solve for x
    x = 182,908,570,871.92/487,014.02
  6. Step 6: Final answer
    x = 375,571.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.